CN1245874A - Double-wedge type semi-spherical ball valve - Google Patents
Double-wedge type semi-spherical ball valve Download PDFInfo
- Publication number
- CN1245874A CN1245874A CN 98116800 CN98116800A CN1245874A CN 1245874 A CN1245874 A CN 1245874A CN 98116800 CN98116800 CN 98116800 CN 98116800 A CN98116800 A CN 98116800A CN 1245874 A CN1245874 A CN 1245874A
- Authority
- CN
- China
- Prior art keywords
- wedge
- valve
- type
- spherical ball
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
The double-wedge hemispheroid ball valve consists of valve body, valve rod, nut, stuffing and stuffing gland. The interior of the valve body is equipped with valve seat, and two wedge hemispheres are mounted in the valve seat, and the wedge valve rod is passed through the stuffing gland, stuffing and valve rod nut, and connected with wedge hemisphere. It possesses the advantages of high service temp. and pressure, good leak tightness and longer service life.
Description
The present invention relates to the valve of engineering component, especially with the valve of spherical valve member.
Valve is the universal machine product that control media flows.Disadvantages such as existing valve exists serviceability temperature and working pressure is on the low side, leakage rate is higher, working life is short partially also have a certain distance with world's valve level.
The valve of new generation that the present invention's purpose is to disclose a kind of serviceability temperature and pressure is higher, leakage rate is lower, working life is long.
The scheme that the present invention adopts double-wedge type semi-spherical to substitute traditional integral spherical closing element realizes goal of the invention.
Double-wedge type semi-spherical ball valve is by valve body and dress Stem Mut and filler within it, and the gland that is contained in valve body top is formed.Valve seat is housed in the valve body, two wedge-type hemisphere are housed in the valve seat.The wedge-type valve rod passes gland, filler and Stem Mut and connects with wedge-type hemisphere.
Below in conjunction with embodiment shown in the drawings, the present invention is done detailed explanation.
Accompanying drawing 1 and 3 is the embodiment of the invention one plan view and left view, and accompanying drawing 2 and 4 is the embodiment of the invention two plan views and left view, and accompanying drawing 5 is valve seat embodiment one plan views.Accompanying drawing 6 and 7 is wedge-type valve rod embodiment one plan view and plan view, accompanying drawing 8,9 and 10 is wedge-type hemisphere embodiment one plan view, plan view and left view, accompanying drawing 11,12 and 13 is wedge-type hemisphere embodiment two plan views, plan view and left view, and accompanying drawing 14,15 and 16 is wedge-type hemisphere embodiment three plan views, plan view and left view.
Shown in accompanying drawing 1 to 4, double-wedge type semi-spherical ball valve is by valve body 7 and dress Stem Mut 4 and filler 11 within it, and the gland 2 that is contained in valve body 7 tops is formed.Valve body 7 can be designed to dichotomic type, triplasy or integrated type.Embodiment one is a dichotomic type, and embodiment two is triplasies.
Shown in accompanying drawing 1 to 16, valve seat 6 is housed in the double-wedge type semi-spherical ball valve valve body 7, two wedge-type hemisphere 5 are housed in the valve seat 6, wedge-type valve rod 3 passes gland 2, filler 11 and Stem Mut 4 and connects with wedge-type hemisphere 5.
Shown in accompanying drawing 1 to 4 and accompanying drawing 8 to 16, wedge-type hemisphere 5 has sealing sphere 16, and wedge surface 15 is arranged at top, and cylndrical surface or plane 17 can be arranged at the bottom, certainly, also can not have cylndrical surface or plane 17.Wedge-type hemisphere 5 forms and reaches the sealing force of needs between the sealing surface 13 of sealing sphere 16 and valve seat 6 under 3 externally applied forces effects of wedge-type valve rod, its seal form forms two-sided forced seal at last from increasing step by step from motive sealing, single face forced seal.Cylndrical surface or plane 17 are location usefulness.
Shown in accompanying drawing 1 to 5 and accompanying drawing 8 to 16, sealing surface 13 and guiding sphere 14 are arranged in the valve seat 6.The effect of guiding sphere 14 is that wedge-type hemisphere is worked more reliably.
Shown in accompanying drawing 1 to 4 and accompanying drawing 6 to 7, butterfly spring 12 is arranged at the bottom of wedge-type valve rod 3, and perhaps overhead cam 9 and following cam 10 are arranged at top.Wedge surface 15 is arranged on the wedge-type valve rod 3, cooperate with wedge surface 15 on the wedge-type hemisphere 5.Wedge-type valve rod 3 is handled wedge-type hemisphere 5, realizes the opening and closing of valve.When closing, wedge-type valve rod 3 can apply sealing force to wedge-type hemisphere 5.The sealing pretightening force can be the spring pretension, also can be the cam pretension.Embodiment two is spring pretensions, i.e. butterfly spring 12 pretensions.Embodiment one is the cam pretension, and overhead cam 9 and following cam 10 are contained between thrust-bearing 8 and the gland 2, and thrust-bearing 8 usefulness supports 1 are fixed on the valve body 7.
The working principle of double-wedge type semi-spherical ball valve is: in the valve opening and closing process, wedge-type hemisphere 5 is under the manipulation of wedge-type valve rod 3, by the enable possition to the operating position transition, perhaps by operating position to the enable possition transition, at this moment under the effect that wedge-type valve rod 3 is pressed in fluid, 12 compressions of butterfly spring or cam loosen, and pretightening force reduces, the frictional force of the sphere of wedge-type hemisphere 5 and valve seat 6 reduces, and makes the keying operation lighter.When the valve wide open position, owing to the effect of pressing in the fluid, 12 compressions of butterfly spring, or overhead cam 9 loosens 6 pretightening forces minimizings of sphere and valve seat with following cam 10.When the valve full close position, the interior pressure of fluid disappears, and wedge-type valve rod 3 is under butterfly spring 12 or action of cam, and compressing wedge-type hemisphere 5 makes the pretension sealing force that formation is adjusted between sphere and the valve seat 6, thereby reaches the purpose of sealing.
Obviously, double-wedge type semi-spherical ball valve is except the advantage with general ball valve, and also have following special advantage: serviceability temperature and working pressure are greatly improved; Sealability is better, and leakage rate is lower, can adapt to various service speeds, can realize telecontrol and automation control, can jam during work, there is not impact during fast opening and closing, and it is little to open and close moment, and the sealing surface abrasion is few, so bigger prolongation is arranged working life.
Double-wedge type semi-spherical valve valve has solved the difficult problem of ball valve to the high level development from structure, therefore becomes the outstanding person in the rotary valve class.Because the manufacturing technology difficulty of sealing surface reduces, and can make the technical parameter level of China's ball valve catch up with and surpass world level, substitute import.From the Technological Economy angle, can replace stopcock, butterfly valve, gate valve and stop valve; From social benefit, can satisfy the needs of national economy all departments, satisfy the needs of scientific technological advance.Therefore, double-wedge type semi-spherical ball valve is a kind of valve of having a bright future.
In the embodiment shown in the figures, embodiment one is inside nominal diameter Dg50mm, and nominal pressure Pg is senior middle school's temperature high pressure valve of 10MPa.Embodiment two is that nominal common name Dg is 25mm, to claim that pressure P g is senior middle school's temperature middle pressure valve of 6.4MPa.
Claims (5)
1, a kind of double-wedge type semi-spherical ball valve, form by within it Stem Mut (4) and filler (11) of valve body (7) and dress, the gland (2) that is contained in valve body (7) top, it is characterized in that being equipped with in the valve body (7) valve seat (6), two wedge-type hemisphere (5) are housed in the valve seat (6), and wedge-type valve rod (3) passes gland (2), filler (11) and Stem Mut (4) and connects with wedge-type hemisphere (5).
2, by the described double-wedge type semi-spherical ball valve of claim 1, it is characterized in that wedge-type hemisphere (5) has sealing sphere (16), wedge surface (15) is arranged at top, and cylndrical surface or plane (17) can be arranged at the bottom.
3,, it is characterized in that having in the valve seat (6) sealing surface (13) and guiding sphere (14) by claim 1 or 2 described double-wedge type semi-spherical ball valves.
4, by claim 1 or 2 described double-wedge type semi-spherical ball valves, it is characterized in that butterfly spring (12) is equipped with in the bottom of wedge-type valve rod (3), perhaps overhead cam (9) and following cam (10) are equipped with in top.
5, by the described double-wedge type semi-spherical ball valve of claim 3, it is characterized in that butterfly spring (12) is equipped with in the bottom of wedge-type valve rod (3), perhaps overhead cam (9) and following cam (10) are equipped with in top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116800A CN1105842C (en) | 1998-08-24 | 1998-08-24 | Double-wedge type semi-spherical ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116800A CN1105842C (en) | 1998-08-24 | 1998-08-24 | Double-wedge type semi-spherical ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1245874A true CN1245874A (en) | 2000-03-01 |
| CN1105842C CN1105842C (en) | 2003-04-16 |
Family
ID=5225213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98116800A Expired - Fee Related CN1105842C (en) | 1998-08-24 | 1998-08-24 | Double-wedge type semi-spherical ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1105842C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007022721A1 (en) * | 2005-08-23 | 2007-03-01 | Zhejiang China Valve Co., Ltd. | Stem seal |
| CN102486235A (en) * | 2010-12-03 | 2012-06-06 | 浙江正华阀门厂 | Unfurled metal sealing ball valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI54837C (en) * | 1976-12-28 | 1979-03-12 | Juha Antti Elia Nelimarkka | VALVE |
| US4940210A (en) * | 1988-03-24 | 1990-07-10 | Gilmore Hugh L | Ball valve |
| CN2209743Y (en) * | 1994-08-24 | 1995-10-11 | 李扬 | Bidirectional sealing rotary core valve |
-
1998
- 1998-08-24 CN CN98116800A patent/CN1105842C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007022721A1 (en) * | 2005-08-23 | 2007-03-01 | Zhejiang China Valve Co., Ltd. | Stem seal |
| CN102486235A (en) * | 2010-12-03 | 2012-06-06 | 浙江正华阀门厂 | Unfurled metal sealing ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1105842C (en) | 2003-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110185812B (en) | Ball valve | |
| CN100570186C (en) | On-off seat globe valve | |
| CN1105842C (en) | Double-wedge type semi-spherical ball valve | |
| CN2345802Y (en) | Double-wedge semisphere ball valve | |
| CN2401739Y (en) | Stop valve | |
| CN2651539Y (en) | Rolling ball valves | |
| CN2355176Y (en) | Frictionfree twin core ball valve | |
| CN2358290Y (en) | Bidirectional metal sealing ball valve | |
| CN2469271Y (en) | Straight tube regulating globe-valve with leakage-proof function | |
| CN1081307C (en) | Metal-sealed bidirectional ball valve | |
| CN2563376Y (en) | Three dimension eccentric full metal sealed butterfly valve | |
| CN2506827Y (en) | Self-holder adjustable ball valve | |
| CN2765018Y (en) | Bi-directional hard sealing eccentric butterfly valve | |
| CN218440748U (en) | Plug valve capable of reducing back pressure | |
| CN2240651Y (en) | Ceramic sealing valve | |
| CN1309258A (en) | Seal structure of valve controlled by turning valve rod | |
| CN2408319Y (en) | Self aid on-and-off valve | |
| CN2475885Y (en) | Single surface sealing ball valve | |
| CN201065963Y (en) | Double-hemisphere bidirectional hard seal ball valve | |
| CN206972968U (en) | A kind of strong corrosion-resistant angle stroke electrically operated valve of polytetrafluoro | |
| CN215172422U (en) | Ball type valve body | |
| CN2738050Y (en) | Corrugated pipe metal sealing ball valve | |
| CN2603255Y (en) | Medium self-sealing butterfly valve with metal ring | |
| CN2460810Y (en) | Full-sealed no-leakage multipurpose valve | |
| CN210510363U (en) | Wear-resistant eccentric half-ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 98116800 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 98240135.3 utility model patent to be given up, and in the 19 volume of the 16 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |